An alphabaculovirus isolated from dead Lymantria dispar larvae shows high genetic similarity to baculovirus previously isolated from Lymantria monacha – An example of adaptation to a new host

•An alphabaculovirus isolated from L. dispar larvae shows significant biologic activity.•Genome revealed that its sequence differs from other available LdMNPVs sequences.•Phylogenetic analyses showed that LdMNPV-BNP shares a common ancestor with LymoNPV.•LdMNPV-BNP genome encodes photolyase gene, absent in Lymantrinae baculoviruses.